Liquid-fuel-oil-feeding governor for internal-combustion engines.



' "J. 1. woon. A LIQUID FUEL OIL FEEDING GOVERNOR POR INTERNALCOMBUSTION ENGINES.

APPLICATION FILED APB..18, 1911.

- Patented June 3, 1918.

UNrrED srArEs PATENT oFFIcE.

JAMES I., WOOD, OF DENVER, COLORADO.

LIQUID-FUELTOIL-FEEDING GOVERNOR FOR INTERNAL-COMBUSTION ENGINES.

1,ocs,49o.

To all whom it may concern Be it known that I, JAMES I. VVooD, a citizenof the United States of America, residing in the city and county ofDenverI and State of Colorado, have invented a new and usefulLiquid-FuelOilFeeding Governor for Internal-Combustion Engines, of whichthe following is a specification.

.My invention relates to improvements in governors for controlling theliquid fuel oil feeding force pumps of internal combustion engines; andthe objects of my invention are: first, to provide an automatic liquidfuel feeding governing mechanism for internal combustion engines, andsecond, to provide a governing mechanism for the pumping apparatus ofinternal combustion engines, that will impart a variable stroke to thepump and thus feed a variable amount of liquid fuel oil to thecombustion end of internal combustion engines. I attain these objects bythe mechanism illustrated in the accompanying drawings, in which:

Figure 1, is a side view, partly in section, of an internal combustionengine, showing the improved fuel feed governor applied thereto. Fig. 2,isa horizontal sectional view through the fly wheel and eccentric, thesection of the latter being taken lengthwise of its guide slot. Fig. 3,is a plan view of the fly wheeLshoWing the eccentric thereon in section,the section being taken transversely of its guide slot. Fig. 4, is aperspective view of the hub portion 'of the fly wheel, showing thesquared end of the hub which receives the eccentric, and Fig. 5, is aperspective view of the eccentric.

Similar letters of reference refer tc similar parts throughout theseveral views.

Referring to the drawings, the numeral l designates thefoundation bed ofan internal combustion engine. 2 designates its cylinder, and 8 itscrank case, which is illustrated removably secured to the cylinder bycap screws 3A, but which may be cast in tegral with it, 1f desired. Thiscrank caseis provided with an air inlet valve 3B. The cylinder isprovided witha ycylinder head 4, that is secured to it by cap screws 5or other suitable means. This cylinder head is provided with arearwardly projecting hemispherical centralpcrtion G, in which ahemispherical block 7;, whichI term the oil vaporizing and ignitionblock, extends. This block is providedin its periphery with semi-Specification of Letters Patent.

Application led April 18, 191,1. Serial No. 621,818.

Patented June 3,1913.

circular explosionchambers 8, Whichextend at right angles to each other,and` their ends open directly into the cylinder. The cylinder 2 is alsoprovided with a pistonv head 9, which is reciprocally mountedtherein',and to which one end of a connecting rodll-is pivotallyconnected. The opposlte end of this rod 10 extends into the crank caseand is operatively connected to a crank shaft 11, which extends throughand beyond the crank case, and `one end isprovided with a fly Wheel 12,that is provided with a projecting hub 13. The cylinder is provided witha water jacket 14, having inlet and outlet pipes y15 and 16 arranged topermit a supply of cold Water under pressure to circulate around thecylinder. The hemispherical block is secured in the cylinder head byscrews 17, or other suitable means, and the cylinder head is providedWith an oil inlet aperture 18, that is arranged to admit oil .directlyinto the explosion chambers of the block 7, and to which one end of aliquid fuel oil supplying pipe 19 is secured, the opposite end of whichextends and is connected to the 4discharge outlet 2O of a force pump 21.vThis force pump 21 is mounted on the side of the cylinder and isprovided with a, suction supply pipe 22, which extends from its suction`inlet 23 to a supply of any suitable liquid fuel oil eX- cept gasolene,such as kerosene or distillate. This supply of oil may be confined in atank portion formed in the'foundation bed,Y and to which the suction orsupply pipe of the pump is extended.

The force pump is provided with a piston or pump rodl 24, which isreciprocally supported along the side of the cylinder in a bracket 25that is secured to the side of the cylinder. This piston rod extendsthrough this bracket and beyond it alongside ofthe adjacent fly wheel,to within a short distance of the hub 13 of the fly wheel, and to thecrank shaft, and at its outer end itis pro* vided with yan`anti-friction shoe 27 which is adapted to bear with a resilientpressure against the .peripheral face ofy an eccentric disk 28, which ismounted on the hub of the adjacent fly wheel. The resilient pressure ofthe shoe against the disk is imparted to it by aY coiled expansivespring 29, that is mounted on the piston rod of the pump and abuts withone of its ends against the bracket, and with its opposite end against l2.0 'a cap screw 35. The hub 13 is provided the collar 30, that issecured to the piston rod of the pump, and thus holds the shoe with aresilient engaging pressure against the peripheral face of the eccentricdisk.

The liquid fuel oil pumping action of the reciprocal movements of thepiston rod is regulated to control the feeding of the supply of oil intothe cylinder head and onto the ignition block, as required by thevarying speeds of the engine to maintain a continuous practical variableload carrying speed by means of a governing mechanism, of which theeccentric disk 28 forms an essential part. This governing mechanismcomprises, in addition to the eccentric disk 28 a link 31 and a lever32, on which a weight 33 is slidably mounted and is adjustl ably securedby a screw 34. The lever 32 is pivotally connected intermediately .ofits ends to one of the spokes of the Hy wheel by with a reduced Hattenedand parallel sided guideway portion 36, and the eccentric disk isprovided with an oblong slot 36A in its Hange portion 37, which litsslidably and reciprocally on the Hattened hub portion of the Hy wheel. Aretaining plate 37A fits over the crank shaft and lits against the end-of the hub of the Hy wheel, and is secured there by cap screws 38, indiametrical alinement with the slot. This plate extends over the slot36A and holds the disk on the Hattened guideway of the hub. Theeccentric disk 28 1s normally held yieldingly in eccentric re lation tothe crank 'shaft by means of a coiled spring'29, which is arrangedbetween .the hub of'the Hy Wheel and the end of the slot that isfarthest from the axial center of the disk, against which it abuts withan expansive tension, and thus holds the eccentric disk under aresilient tension at the limit of its eccentric throw. The link 31 ispivotally secured at one end to the disk adjacent to its slot 36A,/andbetween this slot and the peripheral face of the disk, and its oppositeend extends outwardly from the disk and is pivotally secured to theopposite end of the weighted lever farthest from its adjustable weight.The lever 32 being pivotally connected to the Hy wheel, is arranged tolie in the plane of the Hy wheels rotary movement, and it normally actsthrough the medium of its weight, which is thrown outwardly bythecentrifugal force of the rotary movement of the Hy wheel to move theeccentric disk back against its expansive pressure spring; andconsequently decreases :the throw of the'eccentric to the extent of its'outward throw movement; and the pef ripheral face of thisdisk beingarranged to receive the resilient bearing contact pressure of the shoe27 through the mediul fof the spring 29, a variable eccentric throwmovement is imparted to the eccentric disk and a variable reciprocalmovement is im- `limit of its eccentric throw,

parted by the eccentric disk to the shoe 27 and the pump piston rod 24:,which variable reciprocal movement of the pump piston rod automaticallyvaries the feed of the liquid fuel oil from the force pump into thecylinder head and onto the vaporizing and igniting block.

The operation is as follows: Vhen the speed of the engine increasesbeyond the regular speerl at which the engine is set to run, thecentrifugal force of the rotary movement throws the weighted leveroutward and`consequently moves the eccentric disk inward against' itsspring 29A and toward the axial center of the crank shaft, whichmovement decreases the reciprocal stroke of the piston rod of the pumpand lessens the amount of the charges of oil fed to the explosioncylinder.` head; while should the speed of the engine decrease below thespeed at which the engine is set to run, the amount of the outward throwmovement of the .weighted lever will be decreased, and the eccentricdisk will slide outward on its guideway on the hub under the inHuence ofits expansive spring, which will increase the throw -of the eccentricdisk and the reciprocal stroke of the piston rod of the pump andincrease the quantity of the oil fed into the explosive cylinder head,until the speed of the engine is increased to its normal predeterminedspeed.

My invention is simple and makes a sensitive and accurately operatinggovernor; and while I have illustrated and described the preferredconstruction of my invention, I do not wish to be limited to theconstruction shown, as many changes might be made Without departing fromthe spirit of my invention and the scope of the appended claims.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

1. In an automatic governing mechanism for `internal combustion engines,the combination with a cylinder, the piston, its coperating crank shaftand Hy wheels, and the pump and its pump rod and coperating mechanismsecured to the side of said cylinder, one of the said Hy wheels beingprovided with a flattened reduced hub portion, of an eccentric diskprovided with an oblong slot slidably mounted on the Hattened reducedportion of said Hy wheel, an expansive spring between the end of saidelongated aperture and the hub of said Hy Wheel, arranged to normallyhold said disk at the a link pivotally secured at one end to said disk,a lever pivotally secured intermediate of its ends to one of the spokesof said Hy Wheel, and pivotally secured at is opposite end to theopposite ends of said mounted on and adjustably secured to said link,and a weight slidably slot in its bottom and slidably mounted on saidhub portion, means for yieldingly maintaining the cylinder in itseccentric position,

a Weighted member pivotally mounted on said fly-Wheel and adapted asmoved by centrifugal force to move said eccentric against the action ofsaid yielding means, and a fuel :pump controlled by said eccentric.

3. In a governing mechanism for internal combustion engines, a fly-Wheelhaving a flattened reduced hub portion, a shallow cylinder having arectangular Slot in its bottom and slidably mounted on said hub portion,a spring for yieldingly maintaining the cylmder in an eccentricposition, a removable plate for securing the eccentric to said hubportion in its slidable relation, a weighted member pivotally mounted onsaid fly-wheel and adapted as moved by centrifugal force to move saideccentric against the action of said spring, and a fuel pump controlledby said eccentric.

In testimony whereof I aiiiX my signature in presence of two Witnesses.

JAMES I. WOOD;

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of latenti.

. Washington, D. C.

